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Inner rings
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Inner rings

Inner rings are made of hardened rolling bearing steel and have precisely machined or ground raceways. Their application is necessary when the shaft cannot be used as a suitable raceway for needle roller and cage assemblies, needle sleeves, needle bushes, or needle bearings, whether due to lack of hardening, grinding, or similar conditions.

Wider inner rings serve to ensure the performance and functionality of the bearings by allowing larger axial displacements of the shaft or providing optimal running surfaces for sealing lips.

In cases where wear of the seals and damage to the shaft are expected, it is recommended to mount the inner rings before commissioning the machine. By installing the rings during assembly, later rework on the shaft can be avoided, and the original seal can serve as a replacement.

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